A student used Gaussian elimination on the system of equations and concluded that the following matrix indicated that the value for x was 2, the value of y was 3, and the value of z was 0. Was he right? Why or why not?

-2/

16 is the absolute value

step-by-step explanation:

y=-2.5x+12.5

step-by-step explanation:

5y=2x+10

y=0.4x+2

slope=-2.5

5=-2.5*3+b

b=12.5

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168